Mocofo Women's Waist Trainer Corset Body Cincher Shapewear Rhombus Figure Material: 90% Polyester/10% Spandex 3 hook-and-eye closures for flexible sizing,felixboning supports,flexible and durable,bend easily but recover quickly to origin.It has prismatic figure on the surface. Boosts thermal activity and gently lifts underbust,control tummy just by putting it on.Takes inches off your waist and creates an hourglass figure and promotes a quick postpartum recovery. Its ultra lightweight shell contains 9 steel bones for maximal strength for unbeatable results. Remember: cincher must feel very tight for it to work.Waist training corsets are flexible and measured in flat-laid position.If you are in between sizes,please choose the size down.